CN113814932A - Coupler assembling tool and assembling method thereof - Google Patents
Coupler assembling tool and assembling method thereof Download PDFInfo
- Publication number
- CN113814932A CN113814932A CN202110996331.5A CN202110996331A CN113814932A CN 113814932 A CN113814932 A CN 113814932A CN 202110996331 A CN202110996331 A CN 202110996331A CN 113814932 A CN113814932 A CN 113814932A
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- pressing block
- coupler
- coupling
- elastic supporting
- block
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- 238000000034 method Methods 0.000 title claims abstract description 23
- 238000003825 pressing Methods 0.000 claims abstract description 71
- 238000010168 coupling process Methods 0.000 claims abstract description 62
- 238000005859 coupling reaction Methods 0.000 claims abstract description 62
- 230000008878 coupling Effects 0.000 claims abstract description 60
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 18
- 238000006073 displacement reaction Methods 0.000 claims description 10
- 229910052757 nitrogen Inorganic materials 0.000 claims description 9
- 230000008569 process Effects 0.000 abstract description 10
- 238000010586 diagram Methods 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004484 Briquette Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25B—TOOLS OR BENCH DEVICES NOT OTHERWISE PROVIDED FOR, FOR FASTENING, CONNECTING, DISENGAGING OR HOLDING
- B25B27/00—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for
- B25B27/02—Hand tools, specially adapted for fitting together or separating parts or objects whether or not involving some deformation, not otherwise provided for for connecting objects by press fit or detaching same
Abstract
The invention relates to a coupler assembling tool and an assembling method thereof, belonging to the technical field of coupler assembling, wherein the coupler assembling tool comprises a bearing plate, an upper pressure head, a first elastic supporting piece, a second elastic supporting piece, an outer positioning block, a first pressing block and a second pressing block; the outer positioning block, the first pressing block and the second pressing block are sequentially arranged from outside to inside, the lower end of the outer positioning block is arranged at the upper end of the first elastic supporting piece, the lower end of the first pressing block is arranged at the upper end of the second elastic supporting piece, and the lower end of the second pressing block is arranged on the bearing plate; the coupling assembling tool can adopt combined segmented press mounting, and reduce the opening size and press mounting stroke of the whole equipment, so that large-interference press mounting can be finished by using a conventional press; the coupler assembling tool is light, easy to machine, low in cost, simple and convenient to operate, safe and reliable, and does not need to worry about popping out in the process of press mounting of the coupler rubber bushing.
Description
Technical Field
The invention relates to the technical field of shaft coupling assembly, in particular to a shaft coupling assembly tool and an assembly method thereof.
Background
The coupling is a device for connecting two shafts or a shaft and a rotating part, rotating together in the process of transmitting motion and power and not separating under normal conditions. The couplings can be generally classified into a rigid coupling and a flexible coupling, and the flexible coupling can be classified into an inelastic element flexible coupling and an elastic element flexible coupling. In order to make the rubber bushing perform corresponding functions better, the rubber bushing is usually pressed into the shell with large interference, the compression deformation of the rubber during press fitting even reaches 40% (see fig. 1-2), and the press fitting difficulty is very high due to the large deformation.
The existing press fitting tool adopts a long taper for shrinkage press fitting (see fig. 3), but the press fitting tool is adopted for press fitting, the moving distance of a pressure head is large, so that the opening size of the whole equipment needs to be large, and a press machine meeting the opening size and the stroke has large tonnage, large volume and high cost; in addition, the size and the stroke of the opening of the small-tonnage press machine which meet the requirement of the press-mounting force can not meet the requirement; meanwhile, the tool is heavy, difficult to process, high in manufacturing cost, inconvenient to operate and low in efficiency; in addition, the long-taper sectional press fitting is adopted, the rubber bushing cannot be completely fixed, the risk of popping up exists in the press fitting process, and the safety is poor.
Disclosure of Invention
Technical problem to be solved
The invention aims to provide a coupler assembling tool and an assembling method thereof, and aims to solve the technical problems of large weight, large volume, high cost, inconvenience in operation and low efficiency of a large interference press-fitting tool for a coupler in the prior art.
(II) technical scheme
In order to solve the technical problem, the invention provides a coupling assembling tool on one hand, which comprises a bearing plate, an upper pressure head, a first elastic supporting piece, a second elastic supporting piece, an outer positioning block, a first pressing block and a second pressing block;
the outer positioning block, the first pressing block and the second pressing block are sequentially arranged from outside to inside, the lower end of the outer positioning block is arranged at the upper end of the first elastic supporting piece, the lower end of the first pressing block is arranged at the upper end of the second elastic supporting piece, and the lower end of the second pressing block is arranged on the bearing plate;
the upper end face of the outer positioning block is higher than the upper end face of the first pressing block, and the inner side face of the outer positioning block, the upper end face of the first pressing block and the upper end face of the second pressing block are combined to form a concave face for accommodating a coupler rubber bushing.
Further, the shaft coupling frock still includes positioning core axle, positioning core axle sets up in the inside intracavity of second briquetting, positioning core axle includes positioning core axle basal portion and positioning core axle axial part, positioning core axle axial part stretches out the second briquetting through second briquetting upper end central through-hole.
Further, the loading board comprises a bottom board and a base board, the first elastic supporting piece and the second elastic supporting piece are fixedly arranged on the bottom board, and the second pressing block is fixedly arranged on the base board.
Further, the coupler tool further comprises a spring plate, the lower end of the first pressing block is arranged on the spring plate, and the spring plate is arranged at the upper end of the second elastic supporting piece.
Furthermore, the inner side of the outer positioning block is provided with a supporting part extending downwards, and the supporting part is supported against the outer side surface of the first pressing block.
Furthermore, the first elastic supporting piece and the second elastic supporting piece are both nitrogen springs, and the first elastic supporting piece and the second elastic supporting piece are both provided with a plurality of springs.
Further, the total elastic force of the plurality of second elastic supporting members is greater than the total elastic force of the plurality of first elastic supporting members.
The invention further provides a method for assembling the coupler by using any one of the coupler assembling tools, which comprises the following steps:
placing a coupler assembling tool on a press machine, taking down an upper pressure head, coaxially placing a coupler rubber bushing and a coupler shell, and covering the upper pressure head;
applying a first pressure to the upper pressure head, wherein the upper pressure head, the coupling shell and the outer positioning block all generate displacement relative to the coupling rubber bushing until the upper end face of the outer positioning block is aligned with the upper end face of the first pressing block;
and then, applying a second pressure to the upper pressure head, wherein the upper pressure head, the coupling shell, the outer positioning block and the first pressing block all generate displacement relative to the coupling rubber bushing until the coupling rubber bushing is completely pressed into the coupling shell.
Further, the first pressure is set to be greater than the total elastic force of the first elastic supporting piece and less than the total elastic force of the second elastic supporting piece; the second pressure is set to be greater than a total elastic force of the second elastic support.
Further, the method further comprises: and detecting the displacement of the outer positioning block in real time, and when the upper end face of the outer positioning block is aligned with the upper end face of the first pressing block, automatically switching the output pressure of the press from the first pressure to the second pressure.
(III) advantageous effects
Compared with the prior art, the technical scheme of the invention has the following beneficial effects: the outer limiting block, the first pressing block, the second pressing block, the first elastic supporting piece and the second elastic supporting piece are arranged, and combined segmented press mounting is adopted, so that the size of an opening of the whole equipment and the press mounting stroke are reduced, and large-interference press mounting can be finished by using a conventional press; the coupler assembling tool is light, easy to machine, low in cost and simple and convenient to operate, does not need to worry about popping out in the press fitting process of the coupler rubber bushing, and is safe and reliable;
by arranging the positioning core shaft, the coupling rubber bushing and the coupling shell are coaxially arranged, and the abutting part of the outer positioning block is arranged, so that the central axis of the coupling rubber bushing and the central axis of the coupling shell in the whole press-fitting process are kept coincident, the coaxiality of a product is high, and the quality of the product is ensured;
in addition, the method for assembling the coupler by the coupler assembling tool realizes one-time continuous press fitting through displacement detection and automatic switching of the first pressure and the second pressure, and greatly improves the success rate and the efficiency of coupler assembling.
Drawings
FIG. 1 is a schematic view of a coupling housing according to an embodiment of the present invention;
FIG. 2 is a schematic view of a coupling rubber bushing according to an embodiment of the present invention;
FIG. 3 is a schematic view of a prior art coupling assembly;
FIG. 4 is a perspective view of a coupling assembling tool according to an embodiment of the invention;
FIG. 5 is a cross-sectional view of a coupling assembling tool according to an embodiment of the present invention;
FIG. 6 is a first state diagram of a process of assembling a coupler by the coupler assembling tool according to the embodiment of the invention;
FIG. 7 is a second state diagram of a process of assembling the coupler by the coupler assembling tool according to the embodiment of the invention;
fig. 8 is a third state diagram of the process of assembling the coupler by the coupler assembling tool according to the embodiment of the invention.
Wherein, 100-coupler assembling tooling;
110-an outer positioning block; 120-a first briquette; 130-second briquettes; 140-a first resilient support; 150-a second resilient support; 161-a backplane; 162-backing plate; 171-positioning mandrel shaft portion; 172-positioning the mandrel base; 180-spring plate; 190-an upper pressure head;
200-coupling rubber bushing; 300-coupling housing.
Detailed Description
The embodiments of the present invention will be described in further detail with reference to the drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
In the description of the present invention, "a plurality" means two or more unless otherwise specified; "notched" means, unless otherwise stated, a shape other than a flat cross-section. The terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.
Referring to fig. 4 to 5, in one aspect, the present invention provides a coupling assembling tool 100, which includes a bearing plate, an upper pressing head 190, a first elastic support 140, a second elastic support 150, an outer positioning block 110, a first pressing block 120, and a second pressing block 130;
the outer positioning block 110, the first pressing block 120 and the second pressing block 130 are sequentially arranged from outside to inside, the lower end of the outer positioning block 110 is arranged at the upper end of the first elastic supporting piece 140, the lower end of the first pressing block 120 is arranged at the upper end of the second elastic supporting piece 150, and the lower end of the second pressing block 130 is arranged on the bearing plate;
the upper end surface of the outer positioning block 110 is higher than the upper end surface of the first pressing block 120, and the inner side surface of the outer positioning block 110, the upper end surface of the first pressing block 120 and the upper end surface of the second pressing block 130 are combined to form a concave surface to accommodate the coupling rubber bushing 200.
In some embodiments, the first pressing block 120 is configured as an annular pressing block with an outer folded edge at the bottom, the lower end of the first pressing block 120 is directly disposed at the upper end of the second elastic support 150, and the outer folded edge of the first pressing block 120 is fixedly connected with the second elastic support 150 through a bolt.
In other embodiments, referring to fig. 4 to 5, the coupling assembling tool 100 further includes a spring plate 180, the lower end of the first pressing block 120 having an outer folded edge at the bottom is disposed at the upper end of the spring plate 180, the outer folded edge at the bottom of the first pressing block 120 is connected to the spring plate 180 through a bolt, and the spring plate 180 is fixedly connected to the second elastic support 150.
In some embodiments, the coupling tool further includes a positioning mandrel disposed in the inner cavity of the second pressing block 130, the positioning mandrel includes a positioning mandrel base 172 and a positioning mandrel shaft 171, and the positioning mandrel shaft 171 extends out of the second pressing block 130 through a central through hole in the upper end of the second pressing block 130. The invention adopts the center shaft positioning assembly to ensure the coaxiality of products. Because the pressure head has short stroke, the shaft part 171 of the positioning mandrel is relatively short, the length-diameter ratio is relatively small, the processing difficulty is small, the strength of the positioning mandrel is high, equipment cannot shake during use, the coaxiality of products can be better ensured, the product quality is ensured, and the normal use of the products is met.
In some embodiments, the bearing plate is a bottom plate 161, the bottom of the second pressing block 130 is provided with an outer folded edge, the lower end of the second pressing block 130 is directly arranged on the bottom plate 161, and the outer folded edge at the bottom of the second pressing block 130 is fixedly connected with the bottom plate 161 through a bolt.
In other embodiments, referring to fig. 4-5, the carrier plate includes a bottom plate 161 and a pad plate 162, and the bottom plate 161 and the pad plate 162 may be integrally formed, or the pad plate 162 is fixedly disposed on the bottom plate 161. The top of the backing plate 162 is provided with a folded edge, the top folded edge of the backing plate 162 corresponds to the bottom outer folded edge of the second pressing block 130 up and down, and the top folded edge of the backing plate 162 is fixedly connected with the bottom outer folded edge of the second pressing block 130 through bolts; the first and second elastic supports 140 and 150 are disposed on the base plate 161.
In some embodiments, the inner side of the outer positioning block 110 has a downwardly extending abutment that abuts against the outer side surface of the first pressing block 120. The abutting portion abuts against the outer side face of the first pressing block 120 to play a role in limiting and guiding, stability and product coaxiality of the coupler assembling tool in the press fitting process are guaranteed, and product quality is improved.
In some embodiments, each of the first elastic supporting member 140 and the second elastic supporting member 150 employs a nitrogen spring, and each of the first elastic supporting member 140 and the second elastic supporting member 150 is provided in plurality. The maximum elastic force of the nitrogen spring can be flexibly determined according to the press-fitting requirement, and the supporting requirements of the first elastic supporting part 140 and the second elastic supporting part 150 on the sectional press-fitting can be met, for example, the 350N nitrogen spring can be selected as the first elastic supporting part 140, and the 4200N nitrogen spring can be selected as the second elastic supporting part 150; in addition, the first elastic supporting member 140 and the second elastic supporting member 150 can be detachably connected, so that the first elastic supporting member 140 and the second elastic supporting member 150 with different elastic forces can be replaced conveniently to adapt to different press-fitting requirements.
As to the specific number of the first elastic supporting members 140 and the second elastic supporting members 150, the total elastic force requirement of the first elastic supporting members 140 and the second elastic supporting members 150 can be set according to the elastic force of the first elastic supporting members 140 and the second elastic supporting members 150 and the sectional press-fitting, for example, 3 first elastic supporting members 140 are provided, 3 first elastic supporting members 140 are arranged in an equilateral triangle, and 4 second elastic supporting members 150 are provided, 4 second elastic supporting members 150 are symmetrically arranged, so that the first elastic supporting members 140 and the second elastic supporting members 150 are uniformly stressed.
In some embodiments, the total elastic force of the second elastic supports 150 is greater than the total elastic force of the first elastic supports 140.
Referring to fig. 6 to 8, the present invention further provides an embodiment of a method for assembling a coupler by using the coupler assembling tool 100, where the method includes:
placing the coupler assembling tool 100 on a press machine, taking down the upper pressure head 190, coaxially placing the coupler rubber bushing 200 and the coupler shell 300, and covering the upper pressure head 190;
a first pressure is applied to the upper pressure head 190, and the upper pressure head 190, the coupling shell 300 and the outer positioning block 110 all generate displacement relative to the coupling rubber bushing 200 until the upper end face of the outer positioning block 110 is aligned with the upper end face of the first pressing block 120;
then, a second pressure is applied to the upper ram 190, and the upper ram 190, the coupling housing 300, the outer positioning block 110 and the first pressing block 120 are all displaced relative to the coupling rubber bushing 200 until the coupling rubber bushing 200 is completely pressed into the coupling housing 300.
In some embodiments, the first pressure is set to be greater than the total elastic force of the first elastic support 140 and less than the total elastic force of the second elastic support 150, for example, when the first elastic support 140 of 3 350N nitrogen springs and the second elastic support 150 of 4 4200N nitrogen springs are used, the first pressure may be set to any pressure value (excluding the end points of the above range) within a range of 1050N (3 x 350N) -16800N (4 x 4200N), such that, when the first pressure is applied to the upper ram 190, the first elastic support 140 is compressed and the second elastic support 150 is not compressed under the action of the first pressure, and the upper ram 190, the coupling housing 300 and the outer positioning block 110 are displaced relative to the coupling rubber bushing 200, until the upper end face of the outer positioning block 110 is flush with the upper end face of the first pressing block 120, at this time, the coupling rubber bushing 200 is partially pressed into the coupling housing 300.
The second pressure is set to be greater than the total elastic force of the second elastic support 150. For example, when the second elastic supporting member 150 of 4 4200N nitrogen springs is used, the second pressure is set to be higher than 16800N (4 × 4200N), and the second elastic supporting member 150 is compressed under the second pressure, at this time, the upper ram 190, the coupling housing 300, the outer positioning block 110, and the first press block 120 are all displaced relative to the coupling rubber bushing 200 until the coupling rubber bushing 200 is completely pressed into the coupling housing 300, and the press-fitting is completed.
In some embodiments, the displacement of the outer locating block 110 is detected in real time, and the press output pressure is automatically switched from the first pressure to the second pressure when the upper end surface of the outer locating block 110 is determined to be aligned with the upper end surface of the first press block 120. Through displacement detection and automatic switching of the first pressure and the second pressure, one-time continuous press fitting is realized, and the success rate and the efficiency of shaft coupling assembly are greatly improved.
The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.
Claims (10)
1. The utility model provides a coupling assembly fixture which characterized in that includes: the device comprises a bearing plate, an upper pressure head (190), a first elastic support piece (140), a second elastic support piece (150), an outer positioning block (110), a first pressing block (120) and a second pressing block (130);
the outer positioning block (110), the first pressing block (120) and the second pressing block (130) are sequentially arranged from outside to inside, the lower end of the outer positioning block (110) is arranged at the upper end of the first elastic supporting piece (140), the lower end of the first pressing block (120) is arranged at the upper end of the second elastic supporting piece (150), and the lower end of the second pressing block (130) is arranged on the bearing plate;
the upper end face of the outer positioning block (110) is higher than the upper end face of the first pressing block (120), and the inner side face of the outer positioning block (110), the upper end face of the first pressing block (120) and the upper end face of the second pressing block (130) are combined to form a concave face to accommodate a coupler rubber bushing.
2. The coupler assembling tool according to claim 1, further comprising a positioning mandrel, wherein the positioning mandrel is arranged in an inner cavity of the second pressing block (130), the positioning mandrel comprises a positioning mandrel base portion (172) and a positioning mandrel shaft portion (171), and the positioning mandrel shaft portion (171) extends out of the second pressing block (130) through a central through hole in an upper end portion of the second pressing block (130).
3. The coupling assembling tool according to claim 1, wherein the bearing plate comprises a bottom plate (161) and a backing plate (162), the first elastic supporting piece (140) and the second elastic supporting piece (150) are fixedly arranged on the bottom plate (161), and the second pressing block (130) is fixedly arranged on the backing plate (162).
4. The coupling assembling tool according to claim 1, further comprising a spring plate (180), wherein the lower end of the first pressing block (120) is arranged on the spring plate (180), and the spring plate (180) is arranged at the upper end of the second elastic support member (150).
5. The coupling assembling tool according to claim 1, wherein the inner side of the outer positioning block (110) is provided with a downward extending abutting portion, and the abutting portion abuts against the outer side surface of the first pressing block (120).
6. The coupling assembling tool according to claim 1, wherein the first elastic supporting piece (140) and the second elastic supporting piece (150) both adopt nitrogen springs, and a plurality of the first elastic supporting pieces (140) and the second elastic supporting pieces (150) are provided.
7. The coupling assembling tool according to claim 6, wherein the total elastic force of the second elastic supporting members (150) is greater than the total elastic force of the first elastic supporting members (140).
8. A method for assembling a coupler according to the coupler assembling tool of any one of claims 1 to 7, comprising:
placing a coupler assembling tool on a press machine, taking down an upper pressure head (190), coaxially placing a coupler rubber bushing (200) and a coupler shell (300), and covering the upper pressure head (190);
applying a first pressure to the upper pressure head (190), wherein the upper pressure head (190), the coupling shell (300) and the outer positioning block (110) generate displacement relative to the coupling rubber bushing (200) until the upper end face of the outer positioning block (110) is aligned with the upper end face of the first pressing block (120);
and a second pressure is applied to the upper pressure head (190), and the upper pressure head (190), the coupling shell (300), the outer positioning block (110) and the first pressing block (120) all generate displacement relative to the coupling rubber bushing (200) until the coupling rubber bushing (200) is completely pressed into the coupling shell (300).
9. The method for assembling the coupling by the coupling assembling tool according to claim 8, wherein the first pressing force is set to be greater than the total elastic force of the first elastic support member (140) and less than the total elastic force of the second elastic support member (150); the second pressure is set to be greater than a total elastic force of the second elastic support (150).
10. The method for assembling the coupler according to the coupler assembling tool of claim 9, further comprising: and detecting the displacement of the outer positioning block (110) in real time, and when the upper end face of the outer positioning block (110) is judged to be aligned with the upper end face of the first pressing block (120), automatically switching the output pressure of the press from the first pressure to the second pressure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110996331.5A CN113814932B (en) | 2021-08-27 | 2021-08-27 | Coupler assembly tool and assembly method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110996331.5A CN113814932B (en) | 2021-08-27 | 2021-08-27 | Coupler assembly tool and assembly method thereof |
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| Publication Number | Publication Date |
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| CN113814932A true CN113814932A (en) | 2021-12-21 |
| CN113814932B CN113814932B (en) | 2024-01-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110996331.5A Active CN113814932B (en) | 2021-08-27 | 2021-08-27 | Coupler assembly tool and assembly method thereof |
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|---|---|---|---|---|
| US4574447A (en) * | 1985-02-19 | 1986-03-11 | Bailey Walter L | Device for inserting a bushing into a socket |
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| CN205928471U (en) * | 2016-08-09 | 2017-02-08 | 福州钜立机动车配件有限公司 | Cylinder valve guide pressure equipment machine |
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2021
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| KR101641153B1 (en) * | 2015-04-27 | 2016-07-21 | 화성정밀 (주) | Bushing press-fit parts for manufacturing equipment |
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| Publication number | Publication date |
|---|---|
| CN113814932B (en) | 2024-01-23 |
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